<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <!-- Electron Security Warning (Insecure Content-Security-Policy) -->
    <meta http-equiv="Content-Security-Policy" content="default-src 'self' 'unsafe-inline' 'unsafe-eval'">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Error</title>
</head>
<body>
    错误界面
</body>
</html>